Cowboys fan stabbed in fight with Redskins fan at FedEx Field (VIDEO)

The footage shows a man in a Jason Witten Cowboys jersey sitting on the ground being attended to by someone in a Redskins jacket.

Mike Vaughn, who posted the video, said in the clip that the fan was stabbed and that there was a knife on the ground. Authorities confirmed to Fox 5 DC that a knife was recovered in the concourse and they are investigating. Two arrests were made.

"Wowwwww. This place is a war zone right now. Fights breaking out everywhere. One dude got stabbed," Vaughn wrote on his Facebook page.

WARNING: Graphic language in video.

"We are aware of an altercation that took place at FedEx Field following Monday's game," the Redskins said in a statement issued to Fox 5 DC.

"We thank members of the Prince George's County Police Department who responded promptly to break up the altercation and arrested both men involved. Neither sustained injuries that required hospitalization. We will continue to gather more information on the matter and ensure the safety of all fans at FedEx Field."